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C129800 — Sway stabilization actuator

Sway stabilization actuator. The Taycan, Panamera (971) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.

Which models and control units set C129800

Porsche Taycan

Roll Control System

Porsche Panamera (971, 2017–2023)

eAWS1 (elektrische Aktive Wank Stabilisierung 1)

Porsche Cayenne (9YA)

eAWS1 (elektrische Aktive Wank Stabilisierung 1)

How to read and clear C129800

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and C129800 shows with its status, its full description and the freeze frame when the unit stores one.
  3. Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.

More about fault memory in the manual →

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Other codes of the Roll Control System

C129600Sway Stabilization Control Module
C12964BSway Stabilization Control Module, excessive temperature
C1296F0Sway Stabilization Control Module, Low temperature
C1296F1Sway Stabilization Control Module, Incompatible version
C1296F5Sway stabilization control module, Pneumatic suspension shut-off
C129700Function limitation due to malfunction in sway control module
C1298F0Sway stabilization actuator, Incompatible version
C1298F1Sway stabilization actuator, Regulation not possible
C13F0FBActive discharge, fault
C14174BControl unit for motor pump unit, overtemperature
C1417F0Control unit for motor pump unit, defective control unit
C1417F1Motor pump unit control unit, high-voltage setpoint current outside the valid value range

All 81 codes of this control unit →

Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.